The kwinglutils library is currently using the old and deprecated KDE_EXPORT macro. An own export header for libkwinglutils should be generated in CMake and used for the exports in this library. To complete this task a build environment of kde-workspace master branch is needed. This can be time consuming, ensure to have a setup before starting working on this task. Documentation on the build process is available in http://community.kde.org/Frameworks/Building - this will also build kde-workspace. For some distributions there are development packages available. For example for Kubuntu there is project neon5: https://blogs.kde.org/2013/07/31/project-neon-5-daily-builds-ubiquity-wireless-setup. With such a setup one only needs to build kde-workspace.